I have been wanting a tomahawk, but may potentially be losing my job so....I have some hatchet heads laying around. Is there any potential problems I need to look at in turning a hatchet into a tomahawk by material removal? I figured I would leave the edge alone and just reshape the blade head profile and make a new handle. Would I need to reheat treat it when I was done (heat with torch and dunk in oil) or would that make it more brittle, would it even be necessary?